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2,4-Dihydroxybenzaldehyde

Also known as: β-Resorcylaldehyde, 4-Formylresorcinol, 4-Hydroxysalicylaldehyde, Benzaldehyde, 2,4-dihydroxy-, Resorcialdehyde

2,4-Dihydroxybenzaldehyde (CAS 95-01-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H6O3 and a molecular weight of 138.121 g/mol. Key properties include a melting point of 135-137 °C(lit.), a boiling point of 350.7±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 165.9±16.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
95-01-2
Jingsj CID
J-38219-3
Molecular Formula
C7H6O3
Molecular Weight
138.121 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point135-137 °C(lit.)
Boiling Point350.7±0.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point165.9±16.1 °C
Exact Mass138.031693
PSA57.53000
LogP1.38
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.674
Additional Propertysoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2912499000
Summary2912499000. other aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4-Dihydroxybenzaldehyde?

The CAS number of 2,4-Dihydroxybenzaldehyde is 95-01-2.

What are the molecular formula and molecular weight of 2,4-Dihydroxybenzaldehyde?

2,4-Dihydroxybenzaldehyde has molecular formula C7H6O3 and molecular weight 138.121 g/mol.

Is 2,4-Dihydroxybenzaldehyde hazardous?

2,4-Dihydroxybenzaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 2,4-Dihydroxybenzaldehyde?

For 2,4-Dihydroxybenzaldehyde, Upstream Products: Resorcinol, N,N-Dimethylformamide, Zinc cyanide; Downstream Products: 5-Hydroxy-2,2-dimethyl-2H-chromene-6-carbaldehyde, 4-Methylresorcinol, Isofraxidin.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,4-Dihydroxybenzaldehyde (CAS 95-01-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38219-3 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.